CVE-2021-1622

Summary

CVE	CVE-2021-1622
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2021-09-23 03:15:00 UTC
Updated	2023-11-07 03:28:00 UTC
Description	A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause resource exhaustion, resulting in a denial of service (DoS) condition. This vulnerability is due to a deadlock condition in the code when processing COPS packets under certain conditions. An attacker could exploit this vulnerability by sending COPS packets with high burst rates to an affected device. A successful exploit could allow the attacker to cause the CPU to consume excessive resources, which prevents other control plane processes from obtaining resources and results in a DoS.

Risk And Classification

Problem Types: CWE-667

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Hardware	Cisco	7600 Router	-	All	All	All
Hardware	Cisco	Asr 901-12c-f-d	-	All	All	All
Hardware	Cisco	Asr 901-12c-ft-d	-	All	All	All
Hardware	Cisco	Asr 901-4c-f-d	-	All	All	All
Hardware	Cisco	Asr 901-4c-ft-d	-	All	All	All
Hardware	Cisco	Asr 901-6cz-f-a	-	All	All	All
Hardware	Cisco	Asr 901-6cz-f-d	-	All	All	All
Hardware	Cisco	Asr 901-6cz-fs-a	-	All	All	All
Hardware	Cisco	Asr 901-6cz-fs-d	-	All	All	All
Hardware	Cisco	Asr 901-6cz-ft-a	-	All	All	All
Hardware	Cisco	Asr 901-6cz-ft-d	-	All	All	All
Hardware	Cisco	Cbr-8	-	All	All	All
Application	Cisco	Ios Xe	All	All	All	All
Application	Cisco	Ios Xe	17.3.1x	All	All	All
Operating System	Cisco	Ios Xe	All	All	All	All
Operating System	Cisco	Ios Xe	17.3.1x	All	All	All

References

Reference	Source	Link	Tags
Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Common Open Policy Service Denial of Service Vulnerability	CISCO	tools.cisco.com
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Legacy QID Mappings

317053 Cisco Internetwork Operating System (IOS) XE Software for Cisco cBR-8 Converged Broadband Routers Common Open Policy Service Denial of Service (DoS) Vulnerability (cisco-sa-cbr8-cops-Vc2ZsJSx)